Hydroboration. VI. A Convenient Synthesis of the Alkane and Cycloalkane Boronic and Borinic Esters and Acids

HC Brown, A Tsukamoto, DB Bigley

Index: Brown,H.C. et al. Journal of the American Chemical Society, 1960 , vol. 82, p. 4703 - 4707

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Citation Number: 26

Abstract

The addition of 1-pentene or cyclopentene to a solution of one-half the molar quantity of diborane in tetrahydrofuran solution at 0'results in the formation of 60 to 65% yields of di-n- pentylborane and dicyclopentylborane, readily converted to the corresponding borinic methyl esters by treatment with methanol Equilibration of the initial reaction mixture with a deficiency of diborane (2 olefin/l BHI) leads to the preferred formation of di-n-pentylborane ...